Speed run of Doom 3 in 27 segments appended to one file, completed on November 18 2006. Available in three versions: low/normal/high quality DivX.

Author's comments:
If you want to mail me, or even have my msn address: tagh_azog AT hotmail DOT com -This run took me 4 months to complete, knowing that I speedrun that game for 1 year, (I've had this game since June 2004)! I was going to beat my old run (1:30:52) when Peter 'Kibumbi' Knutsson was beating it on Nightmare, and Liam 'fierus' on Marine. I found most of the new shortcuts on my own, apart from a few which will be mentioned in the following comments. I didn't know that I would beat my old run by 21 minutes! -And again thanks to Joseph 'Apathy' Wilcox for the 1:40 run, which was a milestone in Doom 3 running. Many of the tricks he used were great, although I managed to find the same tricks on my own.

Level times:
1) Mars city Intro - 1:25
2) Mars city underground - 4:41
3) Mars city revisited - 2:00
4) UAC administration - 1:49
5) Alpha labs sector 1 - 2:13
6) Alpha labs sector 2 - 2:13
7) Alpha labs sector 3 - 3:04
8) Alpha labs sector 4 - 2:04
9) Enpro Plant - 3:47
10) Comms Transfer - 3:08
11) Commnunications - 5:43
12) Recycling sector 1 - 3:08
13) Recycling sector 2 - 2:44
14) Monorail - 2:34
15) Delta labs 1 - 3:14
16) Delta labs 2a - 3:08
17) Delta labs 2b - 1:23
18) Delta labs 3 - 1:54
19) Delta labs 4 - 0:38
20) Hell - 4:58
21) Delta labs 5 - 1:54
22) Central processing - 2:12
23) Central server Bank - 1:29
24) Site 3 - 2:56
25) Caverns area 1 - 1:59
26) Caverns area 2 - 1:19
27) Excavation - 1:46

Total time: 1:09:37

All the possible improvements mentioned here is to make a PERFECT run, without other shortcuts or tricks discovered.

1) Mars city Intro (1:25)

Just run like a rabbit! ^^ Strafe jumping works very well on Doom 3 and increases your speed, big thanks to Kibumbi for discovering and perfecting this important trick in Doom 3! You can skip all the video sequences in this level.

Advice: If you want to speedrun or beat this run, this level is a good training level. You must have less than 1:35, and beating 1:27 seems to be impossible.
2) Mars city underground (4:41)

Shortcuts: All tricks on this level shave 4-9 seconds. The first barrel jump outside between the airlocks, and the second jump at the end (great jump here^^). Pass the bridge without extending it, and skip the stairs in the room where the light turns off.

Improved route: go onto the rail to avoid the imp who breaks the stairs, go up the ladder instead of killing the zombie with the flashlight. Kill the 3 first enemies with the lamp, this item is strong! ^^

Possible improvements: better route and proper strafe jump in the entire level you can kill 8 seconds!
3) Mars city revisited (2:00)

Improved route: take the first ladder before it goes down, and get a shotgun boost at the end.

Possible improvements: just be faster, there are no mistakes in my run, but there could be more strafe jumping included.

4) UAC administration (1:49)

Improved route: do not go the entire way to the Alpha labs door, the necessary trigger is located a lot earlier than that. Don't kill the pinkies, avoid them instead.

Possible improvements: better stamina and strafe jump management. You can kill 5 seconds at least in this level!
5) Alpha labs sector 1 (2:13)

Shortcuts: Use the famous trick I discovered, the teleport jump (when an enemy appear), to go onto the balcony where the control panel is and open the barrier in the laser room. You don't have to put the fire out, just run past it. You must have more than 50 Hp to survive, though. Use the barrel jump (saves only 2s).

Enormous trick: if you are kick ass enough fast, you can get the BFG, by killing Campbell before he disappear from the map! It is clearly visible in the run.

Possible improvements: have more stamina at the end, and be faster from the beginning...you can get more than 7 seconds in this level!
6) Alpha labs sector 2 (2:13)

Shortcuts: Thank you Liam 'fierus' to show us the show_triggers command, and that you can pass the first door without killing the imps. It appears to be easy, but it isn't that easy! Also thank you Peter 'Kibumbi' to get a better way to avoid the trite fight when activating the ladder at the end, instead of using the trite boost (hard and slower). You can jump onto the health box and go directly to the end, but you can do it only with a proper strafe jump :)

Possible improvements: in the big dark room, I didn't manage the route with stamina and strafe jump very well. You can kill 5 seconds of this level!
7) Alpha labs sector 3 (3:04)

Improved route: do not use the automated crane sequence to get rid of the first barrel because you will lose 3 seconds. Throw a grenade in the room where you have to wait. With the right timing it will kill 2 enemies at the same time, an imp and a shotgun marine. The faster you kill the enemies in this room the faster the door will be opened!

Possible improvements: with Fraps, there are some problems, Kibumbi has the same point of view ^^. Without it I can kill some enemies before the teleport is complete, but with Fraps it is impossible. If you can somehow solve this problem you can probably shave around 6 seconds from my time. Other than that this level is almost perfect.
8) Alpha labs sector 4 (2:04)

Improved route: you must avoid the first imp, because you can't kill him, unlike some other imps in the pounce position. Run onto the rail before the bridges appears, and kill the Vagary with the BFG!

Possible improvements: the beginning of the level is almost perfect and might be unbeatable, but from the 2nd bridge to the end, the stamina wasn't managed at all, you can kill more than 5 seconds of this level easily because of the 2nd half of this level!
9) Enpro Plant (3:47)

My worst level!

Possible improvements: do not take the storage. Instead, try to pass the fire without disable it in the control panel at the beginning, avoid the door trigger when getting back into the reactor core (that Liam 'fierus' found!), when I have to wait and kill lost souls. And try to manage stamina and jumping, you can kill more than 15 seconds of this level!!
10) Communications transfer (3:08)

Shortcuts: do not take the PDA that let you use the service platform. Go directly to where the platform is, jump onto the rail, and then jump again and click on the panel on the platform, you must hit the right spot (not easy) to activate the back movement.

Improved route: don't take the stairs at the beginning, use the ladder when you encounter the trites outside, jump at the 3rd station without waiting platform to arrive at this point. Kill the enemies with the chainsaw and use the berserk to have a perfect strafe jump!

Possible improvements: this level was great, it would be hard to beat it, apart from if you found a way to skip the taking of the platform!
11) Communications (5:43)

There are no shortcuts in this level, just a very improved route. I think this is one of my best levels, very hard to beat it (near perfect).
12) Recycling sector 1 (3:08)

This is the hardest level for me because of the amount of hard shortcuts to use in the level, plus the route management.

Shortcuts: 3 grenade jumps in the pinkies area to go directly where the recycling control panel is and activate it (this 3 grenade jumps shortcut is very hard to pull off already). And one grenade jump to arrive directly on the stairs, and finally a barrel jump after the last SAS to jump directly at the end!

Improved route: killing revenants with one shot is hard but possible. After the 3 grenade jumps I go to the side when I took health, it is because it causes a bug and you can see that the imp I killed just behind the door disappear directly, and didn't cry! ^^ Also, the maggot, which should be there, didn't appear. Now you know why I took the right side after the health box :)

Possible improvements: try to kill the 2 first revenants in one shot. Don't let the trites block your path when you strafe jump. You can kill 10 seconds of this level, if you are a perfect runner because it's almost impossible to get this perfect route and keep all the shortcuts at the same time!
13) Recycling sector 2 (2:44)

Shortcuts: you can skip (well, not really but you get the idea) the dialogue in the beginning by marking the interface panel, then run backwards and use the panel just as you reach the door. This will allow you to exit the control room before the dialogue takes place, and you can make your way to the second floor in the room by jumping on the container next to the broken stairs. Unfortunately you still have to wait for the door on the second floor to unlock as usual, but you still save 6-7 seconds since you are already at the door when the dialogue is over. You can skip the mancubus area with a rocket jump on the bridge at the top, a great shortcut btw!

Possible improvements: don't waste time killing revenants with the rocket launcher because it is better to avoid them. And don't lose the second I lost when a lost soul hit me in the room after I came back from the recycling control panel! This level is nevertheless hard to beat, I managed it well, but it is still possible to beat it by 5 seconds.
14) Monorail (2:34)

Shortcuts: one rocket jump to go directly on the room where you open the way to Site 3 for the monorail. Went on the other side and pulled off a grenade + rocket jump after the accident to go onto the bridge. I didn't take the PDA to disable the turret defense, but this is even better because I don't have to disable it anyway. I just wait for it to target the commando who followed me, and run at the end, you must have the 100 HP and more than 50 armor to survive!

Improved route: a funny trick is to active the monorail from outside, and you can run on the rail with the train, without any oxygen problems, you can kill 3 seconds (because you don't have to wait for it to open). Also for the second part of monorail you don't have to run with the monorail, the accident scene will appear in all cases. By this way, I took all the armor and health I could take to survive the next shortcuts I used after the crash.

Possible improvements: just in area where the first rocket jump is, you can kill 3 seconds maximum, but this level is still a well-played level.
15) Delta labs 1 (3:14)

Shortcuts: come back to the beginning with a rocket jump, this was a great route I discovered. Also break the window (one of the 3 windows you can break, and this one is useful in the speedrun) to activate the reactor

faster.

Possible improvements: I think there are no possible improvements here. This level is near perfect!
16) Delta labs 2a (3:08)

Only one shortcut here, launch a grenade to kill the 2 zombies in the room with the 9 boxes and the machine. It will trigger the teleport of an imp, go on the rail and rocket jump at the same time, the rocket + teleport jump keep you on the top where you have to go!

Possible improvements: just be faster in all ways, because the route isn't perfect. You can kill 8 seconds at least in this level, I think.
17) Delta labs 2b (1:23)

Shortcuts: this long level is short in the speedrun because of 2 great and big shortcuts, one grenade + rocket jump to skip the first archvile room, and one rocket + teleport jump in the second room where an archvile is. These shortcuts skip 2 minutes of the whole level.

Possible improvements: on marine, you can try to get the first rocket + grenade jump, without killing any enemies. But it is very hard because they are annoying when you want to do this shortcut properly. I don't know even if it is possible. If not, this level is near perfect, I think.
18) Delta labs 3 (1:59)

Shortcuts: one grenade + rocket jump and then another rocket jump to avoid the first teleport sequence (you can see Betruger with this shortcut, a funny bug :D, I pass through him, there is no corpse model for him). The second shortcut was searched by all the speedrunners of this game, and I finally managed to pull off the grenade + rocket jump to jump on the tubes and pass the broken bridge. The reason why this shortcut wasn't found by all runners is that there is an invisible wall, which block you if you try to pass this bridge from the front. You must pass it from the side, that some have tried, but the tubes block you. The only way is to jump on the rail, and do a great grenade + rocket jump on the full right side to go on the tubes.

Possible improvements: please have really good computer skills to run this level (5 fps at the beginning), this level is also almost perfect anyway. If you can get the last shortcut without killing the revenant before, you can save 3 seconds, but I didn't manage it, that's why I killed him.
19) Delta labs 4 (00:38) The shortest level, nothing important here, just a perfect strafe jump to the last room. Skip the cut scene and kill the 2 hellknights in one fully charged BFG shot.

Possible improvements: try to beat this level. I did it in only 3 tries, because it's really an easy level. It would be a nice training if you want to speedrun this game.
20) HELL (4:58)

My favorite level! The invisible floor at the beginning is reachable only with a perfect strafe jump with the right timing. Skip the platform, which goes down to go faster to the berserk room. Keep this berserk as long as possible to speed things up. Killed The Guardian with only 1 HP, I love this stuff in the speedrun! Jump onto the rocks to the left just before the room where there are some barriers, this will prevent 2 lost souls from appearing. At the end, keep the strafe jump in the stairs to increase your speed consequently, it saves 5 seconds just for the end!

Possible improvements: just try to be more efficient in the room where the barriers are! I lose 2 seconds with the reload of ammo belt. But it is really hard to beat 4:58. This is the hardest level to beat I think, together with Communications, Recycling sector 1, and Caverns area 1.
21: Delta labs sector 5 (1:54)

Shortcuts: just one grenade jump to avoid the annoying detour.

Possible improvements: better running in the spider corridor, and maybe you don't want to take the chainsaw. I wanted to take it for the next levels, but if you choose to not take it and manage the spider corridor better you may save 10 seconds in this level!
22: Central processing (2:12)

Shortcuts: in this level we have the highest and hardest jump in the entire run, 1 successful attempt in about 400 tries. This is a neat grenade + double teleport jump! You must wait for the 2nd cherub teleport, and launch a grenade to kill them together at the same time. That will make the archvile summon 2 cherubs at the same time, but you must launch a grenade on the floor with the perfect timing of a 1 frame precision to pull off this enormous trick, you may pay attention to the archvile because he can walk on the grenade and that will ruin the jump! You know now why it's the hardest jump to do in the whole run (it appears to be easy when you see it). But there is nothing hard after this shortcut, this is the only shortcut in the level and it's not at the end, so this level was easier than the Recycling sector 1!

Possible improvements: kill the 2 cherubs faster, and try to have the soul cube ready to kill the first archvile. Maybe it's possible to kill 5 seconds of this level, but I'm not sure.
23) Central server Bank (1:29)

Shortcuts: the first enormous shortcut in the run, with the one in caverns area 1: a great wall-surfing plus a rocket jump to go directly to the Sarge room without the need of the PDA :p. One minute of the whole level saved here!

Improved route: I managed to find the fastest way to trigger the opening of the door at the beginning (I think), you have to kill the 2 archviles and the revenant in the room, and there are many ways to trigger their teleports!

Possible improvements: there might be a faster a way to kill the 3 enemies to get the door open faster, anyway it's a well-played level.
24) Site 3 (2:56)

There are no shortcuts in this level, and many enemies on the route. Therefore the main research on this level was in what way I have to kill the enemies, what enemies I can avoid and with what sequence of weapons I have to kill some enemies. I killed 48 seconds of my previous run in this level without shortcuts. I didn't believe it myself!

Possible improvements: There are some very small misses in the run. You can maybe shave 4 seconds more in this level. And maybe "better computer skills" will help a little as well (near merfect anyway).
25) Caverns area 1 (1:59)

Shortcuts: this level has the highest number of shortcuts in this run. One barrel jump (very hard to pull off, just to save 4 seconds) at the very beginning. Go through the tunnel without the elevator, and strafe jump on the 2 ramps to avoid to death when you jump (ps: on god mode, when you strafe jump all the time, it give you an incredible speed in the tunnel), this shortcut can save 20 seconds. One rocket + slope jump to avoid a long way and take a PDA pickup etc., it saves 30 seconds! Then the most impressive and enormous shortcut of the run is at the end, when I fall down in the last large area, and lost 0 HP! This glitch is very hard to pull off (some luck and randomness here) and it can save 1 minute at least!

Possible improvements: try to get a good strafe jump in the tunnel unlike I did in this final attempt, which isn't that bad after all, and this level is very good anyway!

Ps: I managed to finish the tunnel with 1 HP again, I love this :D
26) Caverns area 2 (1:19)

A short level without shortcuts, but in this level the strafe jump is really important, you can increase your speed a lot if you take a good route! The time can differ with 10 seconds between two runs because of different strafe jumping.

Possible improvements: better strafe jumping. I don't know exactly how much time you can kill on this level. It is less than 5 seconds, that's for sure.
27) Excavation (1:46)

Finally the end of the game!

Shortcuts: There is only one shortcut at the very beginning, almost like in caverns area 1, but you may lose exactly 28 HP all the time you fall down the elevator. With my jump, I.e. a direct jump to fall down without really hit the floor, I got a successful attempt 1 try out of 60. Fortunately, it is at the beginning.

Improved route: get higher speed in the stairs when you jump, with a good tempo, then increase the speed of strafe jump on the last stairs to the Hall! Try to strafe jump everywhere in the tunnels to the boss, this part saves 15 seconds on the whole level from the last run! The second part of this level is the fight. Trigger all the monster spawns by strafe jumping constantly around the hole, to reload your soul cube quickly. I didn't have enough rockets to do it easily, I had to take a worse weapon for this kind of running.

Possible improvements: If you manage to have enough rockets it will be easier to get a good time for this level. Sub 2 minutes is already a good base to beat :D

A perfect run would be close to 1:07:30, with all the perfect improvements you can do on this run, and may be faster by other tricks I haven't discovered yet. Anyway, I think this run is definitively a very good speedrun for the marine run!

* Thanks for everyone who support me in this speedrun, and even posted on the thread!

* Thanks to Peter 'Kibumbi' Knutsson and Liam 'fierus' Jenkin for speedrunning this game and keeping me company in speedrunning Doom 3, and for the 3 tricks I wouldn't know about without them, and some extra thanks to Kibumbi for making the comments easier to read!

* Thanks to SDA for accepting this record on their site!

* Thanks to everyone who read these annoying comments :D and watched my speedrun!

If you didn't see the video yet, enjoy it and be surprised!!!

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